I want to be an Energy Star Builder, but what will it cost, free workshop hosted by Garfield New Energy Communities Initiative, Garfield Re-2 School District Administration Building, 839 Whiteriver Ave., Rifle, 3-5 p.m., register by June 22, http://www.GarfieldCleanEnergy.org, 704-9200.

17th annual Grand Valley School reunion, hosted by class of 1960, Cottonwood Park in Parachute, coffee and donuts at 10 a.m., potluck at noon, take a dish to share, a beverage and lawn chair, coffee, plates, napkins and cutlery will be provided, 858-6429, 270-6649.